单项选择题
—Has Tom finished his homework yet? —I have no idea;he（）it this morning.
A.did B.had been doing C.had done D.was doing
The party was（）great success.We sang and danced until i...
单项选择题The party was（）great success.We sang and danced until it came to（）end at midnight.
A.the；an B.a；the C.a；an D./；a
